Shuttle-box motion for looms



2 Sheets-Sheet 1.

(No Model.) V

0. W. SGHAUM. SHUTTLE BOX MOTION FOR LOOMS. v No. 573,488. Patented Dec. 22, 1896.

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(No Model.) 2 Sheets-Sheet 2.

0. W. SGHAUM. SHUTTLE BOX MOTION FOR LOOMS.

No. 578,488., Patented 1366.22, 1896.

Witnesses. Inventor.

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Z4 Attorney.

In: norms KYEHS co. INOTO-LITHQ. WASHINGTON. u. c.

UNITED STATES PATENT OEEIcE.

OTTO WV. SOHAUM, OF PHILADELPHIA, PENNSYLVANIA.

SHUTTLE-BOX MOTION FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 573,488, dated December 22, 1896.

Application filed March 5, 1894. Serial No. 502,366. (No model.)

To 01. whom it may concern.-

Be it known that I, OTTo WALTER ScHAUM, a citizen of the United States, residing in Philadelphia, in the county of Philadelphia, in the State of Pennsylvania, have invented a certain new and useful Improvement in shuttle-boxes that there will be practically no weight borne by the vibrator levers or gears, and so that no movement given to the vibrator-gears by the indicator mechanism can have the least effect on the shuttle-boxes, and, finally, to simplify the general construction of this class of mechanism.

To effect these objects my invention consists, primarily, in pivoting the gears, which by their rotation or semirotation actuate the boxes, firmly to'the frame of the machine and locking these gears when their stated movement is made, so that they will not be moved from their position except by the positive motion imparted to them by the driving mechanism, and so as to make them entirely free from and unaffected by the movements of the indicator mechanism, and also in various details of construction, which will be more specifically pointed out in the claims which are appended to and form part of this specification.

My invention can be best described in connection with the accompanying drawings, in which- I Figure 1 is a front elevation of my im-.

proved box-motion. Fig. 2 is a section on the linens m of Fig. 1, looking downward; Figs. 3 and 4, detail views. Fig. 5 is a detail view of the preferred form of vibrating lever and lock for said lever. Fig. 6 is a diagrammatic view showing the operation of the device; and Fig. 7 is a detail View of the device shown in Fig. 1,showing the vibrating levers unlocked.

T is a frame, conveniently the side frame of a loom.

A A are gears pivoted on the frame of the machine. B B are vibrator-levers which are pivoted concentrically with the gears A A, which may be conveniently done by pivoting the gears and the levers on the same pivotal studs S S. On the lever B is pivoted a vibratorgear 0, so arranged that it meshes with the gear A, and on the lever B is pivoted a vibrator-gear O, meshing with the gear A. The levers B B are connected as by means of cords c c to some suitable indicator mechanism, (not shown,) which is adapted to raise and lower the levers as may be demanded by the pattern.

G H are two barrel-gears which serve to rotate the vibrator-gears O O, and through them the stud-gears AA. These gears G H, I preferably construct, as is usual, somewhat long, so as to gear with both the gears O O, and Imutilate them, as shown, by removing the teeth from half their periphery, so that after giving the gears O C a semirotation they will disengage themselves from these gears. These gears G II are rotated in opposite directions from any source of power. In the drawings the shaft F of the powergear II is connected to some rotating part of the loom and serves to drive the box-motion, iclle-gearsf j' being conveniently employed, if desired, to drive the gear Gfrom the gear H.

It is important that after the vibrator--levers BB are put in proper position by the indicator mechanism they shall be held locked, while the gears O O, carried thereby, are rotated by one or the other of the power-gears G H. I prefer to so arrange this lock that the levers B B will be positively prevented from moving except at such times as the indicator mechanism is adapted to act and vibrate the lever.

In the construction shown in Fig. 1 a cam F is arranged on the same shaft as the gear H, so as to rotate with said gear, and the contour of the cam relatively to the gear H is such that when the toothed part of this gear is disengaged from the vibrator-gear O or O the cam will unlock the levers B B and permit their vibration, but at all other times the levers will be firmly locked.

I conveniently form levers D D" with the vibrator-levers B B. wedge-shaped projections on the levers D D and are adapted to engage with similar-shaped projections e e on locking-levers E E.

The levers E E are pivoted at e e, and when raised, as shown in Fig. 1, they look the levers B D B D. The levers E E are held in this position during all such time as the gears 01 d are locks shown as 11 or G are in engagement with the vibratorgears.

When the depression f in the cam comes to the position shown in Fig. 7, the locking-levers E E fall or are positively pushed by springs r into said depression f, and the levers 13 D B D are free to vibrate under the action of the indicator mechanism, 0 being cords connecting the vibrator-levers B 13, respectively, with such mechanism, and e s indicate the ends of the levers E which bear against the cam F.

The gear II is shown with a cam F, which when in operation pushes the locks out of engagement with the levers D D. The advantage of the device shown in Fig. 1 over this and old devices in general is that the cam in Fig. 1 holds the vibrator-levers firmly locked at all times except just when the indicator device is ready to act, while in the old devices the locking mechanism is simply held in position by a spring and moved out of such position by some positively-acting means.

The amount of Vibration of the vibrationlevers is conveniently limited by means of stops d As the gears C C are raised or lowered by means of the cords c c, which are connected to the levers B B, on which the gears C C are pivoted, they are engaged by the constantly-rotating gear II or G, which gear II or G gives them a half-revolution in opposite directions. The gears O O are mutilated at c u, so that when the mutilation is reached they will be disengaged from the actuating mutilated gear II or G, this mutilation being so great that the teeth on the barrel-gears G or II can pass without engaging the vibratorgears, the mutilation insuring that the gear G or II will always engage the vibrator-gear at the same point.

It is necessary to limit the movement of the connections whereby motion is transmitted to the shuttle-boxes, so that the motion of the boxes may be very accurate. locking the gears A A, to which the connecting-links J J are secured, independently of the Vibrator-levers B B. As shown in Figs. 1 and 4, I pivot the link Jeecentrieally on the gear A and provide stops which limit the movement of the link J and lock it when its pivot-point is thrown over the center of the gear A.

The stops are very conveniently formed by arranging plates K K in the link J above and below the pivotal point (t of the link J and by prolonging the stud S, on which the gear A is pivoted, as shown at a so that the plates K K will abut against the central-stud a and limit the motion of the link J and thus that of the gear A.

The plates K K may be stationary, as shown in Fig. 3, but I preferably make them adj ustable, as shown in Fig. 4, 7c beingserews by means of which the plates K are conveniently adjusted.

The arrangement of the link J is the same This I effect by as that of the link J. It will be noted that as the pivotal point a of the link is permitted by the stops to move past the center of the gear A the tension of the spring T*, which connects the links J J, as shown, will tend to hold the stops K a tightly engaged and so will prevent any movement of the gear, eX- cept at such times as it is positively moved by the power-gears G H, acting through the vibrator-gears O C. The gears A A being therefore held securely locked independently of the vibrator-levers the vibrations ofthese lovers have no effect on the gears A A, the gears C O, which mesh with them, simply rolling on them slightly when the vibrator-levers B B are moved under the action of the indicator mechanism. Therefore the shuttle-boxes can be set very exactly, and no movement of the vibrator-levers will be communicated to the gears which operate the boxes. Moreover, since the vibrator-levers are pivoted concentrically with the gears A A, the vibrator-gears will not of course be drawn out of mesh by any movement of said levers, and also, since the gears A A, which support the shuttle-box connections, are firmly supported on pivots which are mounted on the frames, there will be no weight of the operative connections borne by the vibrator-levers, which can therefore act with great promptness and without compelling the indicator mechanism to raise anything except the weight of the levers B B and the gears thereon.

The links J J are pivoted to the box-operating lever L at Z Z, respectively, preferably in slots Z so that the position of the links can be adjusted, and the lever L is pivoted at Z to a connecting-rod N, which is secured to the boxes 0, preferably through a breakout. This break-out may conveniently consist of arms at m, pivoted at m and having a socket m formed half in each arm, as shown, in which socket a pin N, secured to the rod N, is held. The two arms are held together by a spring m and so if a shuttle is displaced or if the boxes are for any other reason prevented from moving the arms mm separate, and the box-actuating mechanism can continue to operate without aifecting the boxes.

In order to regulate the throw of the links J J without changing their relative distances from the point Z Z, I prefer to make the pivotal point Ct adjustable to and from the center of the gear A. This can be done as shown in Fig. 3, where the pivot'pin a is shown secured in a block 7), adapted to slide in a groove 0 in the gear A. A screw o preferably a differential screw, is adapted to adjust the position of the pin.

It will of course be evident that any description of the link J and the mode of connecting it applies, of course, to the link J, the arrangement where the screw e is operated from the periphery of the gear, as shown, affording a very convenient mode of adj ustin g the pivotal connection of the link and gear.

P, Fig. 1, is a guide for the lever L.

In operation the vibrator-levers B B are raisedor-lowered, according to the pattern, and the lever L assumes the four positions indicated in Fig. 6, placing any desired box in position, so that its shuttle may be thrown across the shed.

It will be noticed that the vibrator-levers B B are both in their lower position and are locked in this position by means of the levers E E. The power-gears G H are just in the position where they can act on the Vibratorgears if these gears are in proper position. As shown, the gears H and G will simply revolve idly, since the mutilations c of each gear are opposite the power-gear G. After the gears have made a partial revolution, as indicated in Fig. 7, andwhen the toothed part of the power-gears are in such a position of their travel that they cannot engage with the vibrator-gears C C, the cam F unlocks the levers B B, when they can be vibrated as may be necessary. During the rising of a vibrator-gear C or G on the levers B B they will simply turn slightly on the gears A A, as has been explained, and will not rotate said gear till engaged positively by the gear H or G.

As the gear-teeth, which in Fig. 1 are shown in the lower half of the gear 0, engage with the teeth on the stud-gear A, and as the mutilation 0 occurs on this half of the gear, Iprefer to make the mutilation in the shape of a notch, as shown, and provide an enlarged tooth a? on the gear A to engage therewith. This is not necessary on the gear 0, as the mutilation c, which occurs in the teeth which engage with the gear A, is so small that there is no danger that the gears will become disengaged.

The arrangement shown, where the studs S S are placed side by side and the gears O 0 one behind the other, is a very convenient one, as the mechanism is very compact on the side of the loom and the links J J are about the right distance apart.

' Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a shuttle-boX-actuating mechanism, a fixed stud, a gear A pivoted thereon, a vibrator-lever B pivoted concentrically with the gear A, a vibrator-gear O on said lever adapted to mesh with the gear A, means for vibrating the lever B, suitable shuttle-boxes, a connection from the gear A to the shuttleboxes and means for locking thegear A independently of the lever B or gear 0.

2. In a shuttle-box-actuating mechanism, a fixed stud, a gear A pivoted thereon, a vibrator-lever B pivoted concentrically with the gear A, a vibrator-gear O on said lever adapted to mesh with the gear A, means for vibrating the lever B, suitable shuttle-boxes, a link J pivoted to the gear A and serving to connect said gear with said shuttle boxes, stops for limiting the movement of the link J and operating when engaged to lock thegear A independently of the gear 0 or lever B.

3. In a shuttle-box-actuating mechanism, I

the combination with studs S S", of gears A A pivoted on said studs, levers B D, B D pivoted concentrically with the gears A A and carrying vibrator-gears O C" respectively, and having locking projections (1 cl, means actuated from an indicator mechanism adapted to vibrate the levers B D B D, levers E having projections efor engaging with the proj ections cl d and locking the levers in a fixed position after they are vibrated and means for actuating the levers E. g

5. In a shuttle-box-actuating mechanism the combination with studs S S, of gears A A pivoted on said studs, levers B D B D pivoted concentrically with the gears A A and carrying vibratorgears O C respectively, and having locking projections d d, means actuated from anindicator mechanism adapted to vibrate the levers B D B D, levers E having projections e for engaging with the projections dd and locking the arms in a fixed position after they are vibrated, and a cam F operating to actuate the levers E to hold the vibrator-arms locked except at such times as the indicator mechanism is adapted to act to vibrate said levers.

6. In a shuttle-box-actuating mechanism the combination with a pivoted gear as A, means for rotating said gear in both directions, a link J pivoted eccentrically on said gear, a stop a on the gear and stops K K on the link J adapted to engage with the stops a 7. In a shuttle-box-actuating mechanism the combination with a pivoted gear as A, means for rotating said gear in both directions, a link J pivoted eccentrically on said gear, a stop a on the gear and adjustable stops K K on the link J.

S. In a shuttle-box-actuating mechanism, a gear A having a link J pivoted eccentrically thereto, a vibrator-lever B, a vibratorgear 0 thereon meshing with the gear A and adapted to give it half a revolution in both directions, and means for locking the gear A independently of the lever B.

OTTO W. SOHAUM. Witnesses:

ALF. H. FABER, Enw. F. AYRES.

IIO 

